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Finding the Fourth Proportional to 73,104.97, 109,407.95 and 61,272.10

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Solution

The fourth proportional to 73,104.97, 109,407.95 and 61,272.10 is: 91,699.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,104.97 : 109,407.95 = 61,272.10 : x
  2. Step 2: Convert to fraction form
    73,104.97/109,407.95 = 61,272.10/x
  3. Step 3: Cross multiply
    73,104.97x = 109,407.95 × 61,272.10
  4. Step 4: Simplify right side
    73,104.97x = 6,703,654,853.20
  5. Step 5: Solve for x
    x = 6,703,654,853.20/73,104.97
  6. Step 6: Final answer
    x = 91,699.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.